Tellurium dioxide (TeO₂), also known as tellurium(IV) oxide, is a white, crystalline inorganic compound formed by the oxidation of tellurium. It is valued for its high refractive index, strong acoustooptic properties, and excellent infrared transmission, making it an important material in advanced optical and electronic technologies.
Tellurium dioxide is widely used across hightech industries due to its unique optical, electronic, and structural characteristics:
- Acoustooptic devices: A key material for acoustooptic modulators, deflectors, and frequency shifters due to its high acoustooptic figure of merit.
- Infrared optics: Used in infrared windows, lenses, and filters because of its strong IR transparency.
- Fuel cells and solar technologies: Serves as a component in catalysts, thin films, and specialized coatings for energyconversion devices.
- Thinfilm deposition: Applied in evaporation and sputtering processes to produce highpurity optical and electronic coatings.
- Advanced photonics: Supports nonlinear optical applications and crystal growth for specialty optical components.
General Properties
| Properties | Value |
| Chemical formula | TeO2 |
| CAS # | 7446-07-3 |
| EC / EINECS # | 231-193-1 |
| Molar mass | 159.60 g/mol |
| Appearance | White powder |
| Melting point | 732 °C (1,350 °F; 1,005 K) |
| Boiling point | 1,245 °C (2,273 °F; 1,518 K) |
| Density | 5.670 g/cm3(orthorhombic) 6.04 g/cm3 (tetragonal) |
| Solubility in water | Negligible |
| Solubility | Soluble in acid and alkali |
Product Availability
We provide high-purity Tellurium Dioxide (TeO2) tailored for semiconductor and other high-tech industrial requirements.
| Purity | 99.99% – 99.9999% |
| Forms | Powder |
| Particle Sizes | From -50 mesh to – 325 mesh |
| Nanoparticle Sizes | From 30 nm to 100nm |
| Package | At request |
If you are in need of any high purity Tellurium Dioxide (TeO2), please contact our sales team for details at sales@american-gmg.com.